Operation Holy Tuesday Known by CIA Since Year 2000

CIA had Malaysia secret police monitor Jan., 2000 al Qaeda meeting where "Operation Holy Tuesday" (9/11) was planned

As highlighted by valis, founder of libertythink.com, on his new website Awoken, according to a July 10, 2003 New York Post article (free archive.org cache) (emphasis added):

The Sept. 11 attacks were given the code name "Operation Holy Tuesday" and precisely planned at an al Qaeda meeting in Malaysia chaired by terror mastermind Khalid Sheikh Mohammed in January 2000, it was revealed yesterday.

The purpose of the three-day secret terror conference, which was monitored by the Malaysian secret police at the CIA's request, was to discuss details of how the hijackers should train and hide in the United States and how the attacks should be carried out.

"This was the first planning meeting of the 9/11 operation. It was to review the progress they had achieved on the operation and to map out their future course of action," Rohan Gunaratna, the world's most renowned expert on Osama bin Laden, told reporters after he appeared before the commission probing 9/11.

The meeting of terrorists in Malaysia has previously been disclosed, but Gunaratna added new details that have never before been revealed, such as the involvement of Khalid Mohammed. Also, the name of the attacks, "Operation Holy Tuesday," has not been previously known.

Gunaratna, based in Singapore, is a counter-terrorism consultant for the U.S. and British governments who says he has had access to records of interrogations of captured al Qaeda leaders.

Mohammed was in charge of the Malaysia meeting and told some of the other terrorists there the targets would include the World Trade Center and the date of the attacks would be Sept. 11, 2001, Gunaratna said.

This was also covered in an Ananova story from about the same time.
As for the veracity of the quoted Rohan Gunaratna, according to an Oct. 10, 2003 U.S. State Dept. transcript:

Interview by The Australian
Richard L. Armitage, Deputy Secretary of State

[...] QUESTION: In terms of the threat, I was reading some comments by a fellow called Rohan Gunaratna, I think his name is --

DEPUTY SECRETARY ARMITAGE: Yes, he's a very expert observer of the radical Islamic scene.

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